A point charge of `2.0 muC` is at the centre of a cubic Gaussian surface 9.0 cm on edge. What is the net electric flux through the surface ?

Explanation

Net electric flux passing through any closed Gaussian surface is,
`phi = q/epsilon_(0)` (where q= net charge enclosed)
`=(2 xx 10^(-6))/(8.85 xx 10^(-12))`
`phi = 2.26 xx 10^(5) Nm^(2)//C^(2)`
There is no change in flux due to dimensions of cube and position of charge inside cube.